Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Before disassembling, measure the end play of 1st and 2nd main gears as shown.
End play standard value

1st gear: 0.20 - 0.30 mm (0.0079 - 0.0118 in)

2nd gear: 0.06 - 0.16 mm (0.0024 - 0.0063 in)

CAUTION: If the measurement is outside the standard value, disassemble to check the contact surfaces of gear, shaft, and hub. Adjust with the snap ring at assembly.

Fig 1: Measuring End Play Of 1st And 2nd Main Gears
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the snap ring.
Remove the C-ring holder, and then mainshaft C-ring as shown.

Fig 2: Removing C-Ring Holder, Mainshaft C-Ring
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the mainshaft rear bearing, adjust shim, and 6th main gear using Tool as shown.
Remove the 5th-6th mainshaft spacer.

Fig 3: Removing Mainshaft Rear Bearing, Adjust Shim, And 6th Main Gear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the 4th main gear and 5th main gear simultaneously using Tool as shown.
Remove the adjusting shim.
Remove the 3rd-4th mainshaft spacer.

Fig 4: Removing 4th Main Gear And 5th Main Gear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the 3rd main gear, 2nd main gear, 2nd gear needle bearing, 2nd bushing, 1st-2nd synchronizer assembly, 1st main gear, reverse main gear, 1st gear needle bearing, and 1st bushing simultaneously using Tool as shown.

Fig 5: Removing 3rd Main Gear, 2nd Main Gear, 2nd Gear Needle Bearing, 2nd Bushing, 1st-2nd Synchronizer Assembly
Courtesy of NISSAN MOTOR CO., U.S.A.